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Finding the Fourth Proportional to 578,792.79, 798,745.05 and 324,143.37

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Solution

The fourth proportional to 578,792.79, 798,745.05 and 324,143.37 is: 447,324.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,792.79 : 798,745.05 = 324,143.37 : x
  2. Step 2: Convert to fraction form
    578,792.79/798,745.05 = 324,143.37/x
  3. Step 3: Cross multiply
    578,792.79x = 798,745.05 × 324,143.37
  4. Step 4: Simplify right side
    578,792.79x = 258,907,912,277.82
  5. Step 5: Solve for x
    x = 258,907,912,277.82/578,792.79
  6. Step 6: Final answer
    x = 447,324.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.